Our newest design with all Carbide Cutting Surfaces which include: two Chip Lifter teeth, two Carbide Spur teeth and the Carbide center point. This new open head design passes wood cuttings through the cutter head better than the old style multi-tooth cutter head. Each tool is guaranteed to work in our quick-release adapter and run smoothly in our Bore Master fixture, providing 100's of cuts. High quality micro grain carbide cutting surfaces are welded to each cutter face and tip providing a service factor of at least 10 to 1 over regular carbon steel spur bits. Templaco Carbide Tipped spur bits will work in any brand name boring jig fixture including: Classic Engineering, Porter-Cable, Kwik-Set, Schlage Lock, Pro-Lock and any other fixture that uses a 1/2” inside diameter bushing to guide the bit. (You must use our Templaco Quick-Release adaptor (Model AD-603 or AD-603HD) if you purchase a Templaco bit to be used in another brand name fixture). Length overall is 8” including the hex shank and cutter head. Not designed for Drill-Press Use.